CN110030442A - A kind of pipe joint - Google Patents
A kind of pipe joint Download PDFInfo
- Publication number
- CN110030442A CN110030442A CN201910412756.XA CN201910412756A CN110030442A CN 110030442 A CN110030442 A CN 110030442A CN 201910412756 A CN201910412756 A CN 201910412756A CN 110030442 A CN110030442 A CN 110030442A
- Authority
- CN
- China
- Prior art keywords
- guide face
- pearl
- pipe joint
- outer cylindrical
- cylindrical portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 12
- 238000003780 insertion Methods 0.000 description 10
- 230000037431 insertion Effects 0.000 description 10
- 238000002474 experimental method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0206—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with the pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0225—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means without sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses a kind of pipe joints, comprising: adapter body enters pearl and nut；The adapter body has main body canister portion, outer cylindrical portion and inner cylinder portion, the outer cylindrical portion is coaxially provided projectingly from main body canister portion to its axis direction side, the groove portion of oriented one side opening of axis direction is surrounded and formed to the outer cylindrical portion and inner cylinder portion, the inner cylinder portion be set to the radially inner side of outer cylindrical portion and by make jag than the jag of outer cylindrical portion closer to main body canister portion side in a manner of and outer cylindrical portion be coaxially provided projectingly to the same direction from main body canister portion；It is described enter pearl include be embedded in the tubular built-in end of adapter body and far from built-in end and conduit connecting pin, the built-in end is removably embedded on the inside of groove portion to form sealing；The conduit connecting pin is in far from radially protruding setting on axis direction；The purpose of the present invention is to provide a kind of pipe joints that pipe joint can be made to have more preferable leakproofness using the kinetic energy of pipe joint fluid flow inside.
Description
Technical field
The present invention relates to a kind of connectors, more specifically, it relates to a kind of pipe joint.
Background technique
In the manufacturing process of the manufacture of semiconductors manufacture, medical treatment and medical supplies, food processing and industrial circle, need to make
With various fluids (such as high-purity medical fluid, analar), and these fluids in machinery equipment necessarily by leading
What pipe was conveyed, between conduit and conduit, pipe joint is required between conduit and equipment be attached.If conduit connects
The leakproofness of head is not good enough or not up to standard, will be phenomena such as joint generates leakage, it is clear that such case is cannot to generate
, it is therefore desirable to sealing effect excellent pipe joint avoids this type of circumstances from happening.
Currently, a kind of tube joint consisting of resin is disclosed in the Japanese document that notification number is JP2799562B2, including
Adapter body, sleeve and fastener；Sheathed catheter is set to one end of sleeve in its use, then by the other end and connector of sleeve
Main body connection, is finally further anchored on adapter body for conduit and sleeve using fastener, comes in this way
Realize the sealed connection effect at pipe joint.
And in the patent of invention file that Authorization Notice No. is CN1064461130B, resin pipe connector is disclosed, equally
It also include adapter body, sleeve and fastener, when use is also one end that sheathed catheter is set to sleeve, then by the other end of sleeve
It is connect with adapter body, conduit and sleeve is further finally anchored on adapter body using fastener.In this scenario
The insertion rate and multiplying power of insertion section insertion groove portion are further defined, to realize better seal effect.
It can be seen that in prior art solutions, the characteristic and part-structure of pipe joint material is only utilized
Characteristic, Lai Tigao conduit connect when better seal effect.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide one kind to utilize pipe joint inside stream
Body flowing kinetic energy and make pipe joint have more preferable leakproofness pipe joint.
To achieve the above object, the present invention provides the following technical scheme that a kind of pipe joint, comprising: adapter body enters
Pearl and nut；The adapter body has main body canister portion, outer cylindrical portion and inner cylinder portion, and the outer cylindrical portion is from main body canister portion to its axle center
Direction side is coaxially provided projectingly, and the slot of oriented one side opening of axis direction is surrounded and formed to the outer cylindrical portion and inner cylinder portion
Portion, the inner cylinder portion be set to the radially inner side of outer cylindrical portion and so that jag than outer cylindrical portion jag closer to main body canister portion
The mode and outer cylindrical portion of side are coaxially provided projectingly to the same direction from main body canister portion；It is described enter pearl include insertion adapter body be in
The conduit connecting pin of the built-in end of tubular and separate built-in end, the built-in end are removably embedded on the inside of groove portion to form sealing
Portion；The conduit connecting pin is in far from radially protruding setting on axis direction；The nut is threadedly coupled with adapter body；It is described
Adapter body and the inside for entering pearl are provided with the runner to fluid circulation；The conduit connecting pin inner flow passage inner circumferential is set
It is equipped with the first guide face, the opening radial dimension of first guide face towards conduit connecting pin is gradually reduced.
The present invention is further arranged to: the outer surface of the conduit connecting pin includes the first resistance surface and the second resistance surface,
Opening of first resistance surface close to conduit connecting pin is arranged, and second resistance surface is arranged close to pearl insertion extreme direction is entered,
First resistance surface, the setting of the second resistance surface are a plane or an arc surface；First guide face is set in pearl runner corresponding
At first resistance surface.
The present invention is further arranged to: first guide face end is connected with the second guide face, first guide face
Annular groove is formed with the second guide face.
The present invention is further arranged to: the first guide face setting is a plane or an arc surface.
The present invention is further arranged to: the second guide face setting is a plane or an arc surface.
The present invention is further arranged to: the first guide face edge enters pearl axial width and is set as between 3mm-15mm；Institute
It states the first guide face and is set as between 0.1mm-4mm along entering pearl radial height.
The present invention is further arranged to: first guide face and the second guide face are set as along the overall width for entering pearl axial direction
Between 3mm-15mm；Second guide face is identical along pearl radial height is entered as the first guide face along pearl radial height is entered.
The present invention is further arranged to: first guide face edge is set as fillet.
The present invention is further arranged to: the edge of first guide face and the second guide face is disposed as fillet.
The present invention is further arranged to: being connected with horizontal connecting surface between first resistance surface and the second resistance surface.
By using above-mentioned technical proposal, during pipe joint is specifically used, tube fluid is from even thickness
When being flowed through in runner at the first guide face of necking, impulse force can be generated to the first guide face along flow direction, utilize this punching
Power can reinforce the sealed pressure of sealing in pipe joint, to realize better seal effect.Meanwhile runner inside contracts here
The setting of mouth becomes faster so that fluid flow velocity when flowing through at this is opposite, and pressure becomes smaller, and can have past runner center to flow
Dynamic trend, this allows for not allowing easy-to-leak liquid at the position that conduit connecting pin is connected with conduit, and sealing effect is more preferable.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is the structural schematic diagram of pipe joint embodiment one of the present invention；
Fig. 2 is the structural schematic diagram for entering pearl in pipe joint embodiment two of the present invention；
Fig. 3 is the structural schematic diagram for entering pearl in pipe joint embodiment three of the present invention；
Fig. 4 is the structural schematic diagram for entering pearl in pipe joint example IV of the present invention；
Fig. 5 is the structural schematic diagram for entering pearl in pipe joint embodiment five of the present invention；
Fig. 6 is the structural schematic diagram for entering pearl in pipe joint embodiment six of the present invention；
Fig. 7 is the structural schematic diagram for entering pearl in pipe joint embodiment seven of the present invention；
Fig. 8 is the structural schematic diagram for entering pearl in pipe joint embodiment one of the present invention；
Fig. 9 is the structural schematic diagram for entering pearl in pipe joint embodiment eight of the present invention；
Figure 10 is into the partial enlarged view at pearl insertion adapter body；
Figure 11 is partial enlarged view when nut fastens；
Figure 12 is the schematic diagram that fluid flows from left to right in embodiment one；
Figure 13 is the schematic diagram of fluid right-to-left flowing in embodiment one.
In figure: 1, adapter body；11, main body canister portion；12, outer cylindrical portion；13, inner cylinder portion；14, groove portion；2, enter pearl；21, embedding
Enter end；211, at the top of built-in end；212, built-in end bottom；22, conduit connecting pin；221, the first guide face；222, the second water conservancy diversion
Face；223, the first resistance surface；224, horizontal connecting surface；225, the second resistance surface；23, annular groove；231, fillet；3, nut；4, it leads
Pipe；5, runner；6, primary sealing area；7, secondary sealing area.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
A kind of pipe joint embodiment of the present invention is described further referring to figs. 1 to Figure 13.
Embodiment one:
A kind of pipe joint as shown in Figure 1, including substantially tubular adapter body 1, substantially it is tubular enter pearl 2 and substantially
Tubular nut 3, enters and is removably tightly connected between one end of pearl 2 and adapter body 1, is inserted into adapter body 1 entering pearl 2
Position formed sealing；The other end for entering pearl 2 is connected with conduit 4, is threadedly coupled between nut 3 and adapter body 1, and Yu Lian
Conduit 4 is anchored on adapter body 1 by being squeezed into pearl 2 when connecing, while being formed on the surface for entering the conflict conduit 4 of pearl 2 and nut 3
Secondary sealing area 7；It is provided with the runner 5 to fluid circulation in the inside that the sum of adapter body 1 enters pearl 2, is further being led
22 inner flow passage of pipe connecting pin, 5 inner circumferential is provided with the first guide face 221, and the first guide face 221 here is far from adapter body 1
The radial dimension of side is less than the first guide face 221 close to the radial dimension of 1 side of adapter body, i.e. 221 edge of the first guide face
It is axial to 7 side necking of secondary sealing area setting to enter pearl 2.Further, in the first guide face 221 close to 1 side of adapter body
It is connected with the second guide face 222, an edge is formed by the first guide face 221 and the second guide face 222 in this way and enters 2 inner wall of pearl
Circumferential annular groove.
In the present embodiment, adapter body 1 has main body canister portion 11, outer cylindrical portion 12 and inner cylinder portion 13, while in outer cylindrical portion 12
The groove portion 14 for forming oriented one side opening of axis direction is surrounded between inner cylinder portion 13, groove portion 14 opening direction direction enters pearl 2 one
Side；And it is inwardly provided with chamfering far from one end of main body canister portion 11 in outer cylindrical portion 12, to enter the insertion of pearl 2；Further,
Enter the built-in end 21 and separate built-in end 21 that pearl 2 includes insertion adapter body 1 and the conduit connecting pin 22 connecting with conduit 4, this
In be removably tightly connected between pearl 2 and adapter body 1 by the insertion cooperation of built-in end 21 and groove portion 14 to realize.
Further be arranged more specifically, doing to built-in end 21: the outer diameter of built-in end 21 and the internal diameter of outer cylindrical portion 12 are substantially the same, and are such as schemed
Enter the partial enlarged view that pearl 2 is embedded at 1 insertion of adapter body when being specifically used shown in 10, since the thickness of built-in end 21 is set
It sets, so that foring primary sealing area 6 after it is embedded in groove portion 14.
In the present embodiment, enter the conduit connecting pin 22 of pearl 2 in protruding above setting far from axis direction, form first and support
Contacting surface 223 and the second resistance surface 225；Nut 3 is greater than into 2 internal diameter of pearl far from the internal diameter of 1 side of adapter body and is less than conduit company
Connect the maximum outside diameter of 22 high spots of end.It is such setting so that nut 3 when tightening, can its edge by conduit 4 compress into
225 surface of the first resistance surface of pearl 2；The conduit connecting pin 22 for protruding setting simultaneously is more not easy to allow the conduit for being placed on its surface
4 fall off.To be placed on the schematic diagram fastened into 2 surface duct 4 of pearl as shown in figure 11 by being squeezed into pearl 2 for specific nut 3, while this
The connection type of sample forms secondary sealing area 7 between conduit 4 and conduit connecting pin 22.Further, in the present embodiment
In, the first resistance surface 223 and the second resistance surface 225 are disposed as inclined-plane by us, and are contradicted in the first resistance surface 223 and second
A horizontal connecting surface 224 is also connected between face 225, horizontal connecting surface 224 protrudes part for increasing conduit connecting pin 22
Contact area between conduit 4 increases the frictional force between conduit 4, keeps its not easily to fall off, while will be originally curved at protrusion
More sharp angle passivation is rolled over, the damage to conduit 4 is reduced, increases its service life.
In the present embodiment, further by the specific location of the first guide face 221 and the second guide face 222 be set into
22 inside of conduit connecting pin of pearl 2, and the edge of the first guide face 221 and the second guide face 222 is disposed as fillet
231.Further, curved surface is set with the second guide face 222 by the first guide face 221 and curvature is identical, can allow in this way
Rounder and more smooth in runner 5, making that when the fluid is flowing, flowing is more smooth, while reducing to the first guide face 221 and the second water conservancy diversion
The abrasion of 222 edge of face increases the service life into pearl 2.Here by 222 edge of the first guide face 221 and the second guide face
Enter 2 radial height of pearl and be set as 2mm, the first guide face 221 and the second guide face 222 are arranged along the axial overall width of pearl 2 is entered
For 10mm.
Above-mentioned specific size data in order to obtain, we are respectively provided with some experiments.Make the first guide face 221 and
Two guide faces 222 are respectively 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm along 2 radial height of pearl is entered；First
Guide face 221 and the second guide face 222 are 3mm, 5mm, 7mm, 9mm, 11mm, 13mm, 15mm along the axial overall width of pearl 2 is entered
Enter pearl 2, altogether 56 it is various sizes of enter pearl 2 be used as one group, be divided into three groups, respectively under 0.75MPa, room temperature operating condition and
Under 0.097MPa, 180 DEG C of operating condition, the experiment of leakage property is carried out.It is unified to pipe joint before experiment in order to simulate actual condition
All components and 56 enter pearl 2 and 10 heating (150 DEG C, 1 hour) and cooling (25 DEG C of temperature, 6 hours) are repeated.In reality
Be not provided with the first guide face 221 or the second guide face 222 before testing inside two groups of runners 5 of setting simultaneously enters pearl 2, and two groups enter pearl
2 respectively under 0.75MPa, room temperature operating condition and under 0.097MPa, 180 DEG C of operating condition, carries out the experiment of leakage property respectively.And it records
To being 43752 hours in 0.75MPa, 2 leak time of room temperature operating condition tripping in pearl, it is recorded under 0.097MPa, 180 DEG C of operating condition
Entering 2 leak time of pearl is 8747 hours.
The Sealing period of leakage property experiment under table one: 0.75MPa, room temperature operating condition
The Sealing period of leakage property experiment under the operating condition that two: 0.097MPa, 180 DEG C of table
According to above-mentioned several groups of experiments, it is as follows finally to can get conclusion: all to be provided with the first guide face 221 or the second guide face
222 enter pearl 2 under 0.75MPa, room temperature operating condition and under 0.097MPa, 180 DEG C of operating condition, no matter how its size changes, phase
For control group, leakproofness has promotion；Under the same operating condition, the first guide face 221 and the second guide face 222 are along entering
2 radial height of pearl is higher, and sealing effect is better, and the first guide face 221 and the second guide face 222 are got over along the axial overall width of pearl 2 is entered
Wide sealing effect is better.If but by the height or overall width of the first guide face 221 and the second guide face 222 setting it is bigger when,
The quantity of material that just will affect conduit connecting pin 22 will lead to the service life for reducing entire pipe joint.Therefore comprehensively consider
The leakproofness and service life for entering pearl 2, selecting the first guide face 221 and 222 height of the second guide face here is 3mm, and first leads
Stream interface 221 and the second guide face 222 are 11mm along the axial overall width of pearl 2 is entered, as most preferred embodiment.
In the specific use process, difference is flowed to according to pipe joint internal flow, is broadly divided into two kinds of working conditions.
Working condition 1: fluid is flowed out by adapter body 1, is flowed through into pearl 2, last inflow catheter 4.
As shown in figure 12, force analysis is carried out to its inside.Fluid flow direction is V1, when it is flowed in runner 5 by narrow section
When to the first guide face 221 and the second guide face 222, since the section of runner 5 becomes larger suddenly, fluid can be along its stream
Dynamic direction generates an impulse force F1 to 221 surface of the first guide face, which decompose, we know to seal to second
The component of impulse force F1 can be considered an additional sealed pressure for face 7, and the sealing effect of secondary sealing area 7 can be allowed more preferable.
Simultaneously as the setting of 221 shape necking of the first guide face, so that flowing out close to the fluid at the first guide face 221 into pearl 2
When, flow direction is not level, can be flowed along 221 edge tangent line direction of the first guide face, therefore flow out in fluid into pearl 2
When, reduce a possibility that fluid penetrates into secondary sealing area 7, in other words, that is, increases the sealing effect of secondary sealing area 7.
Working condition 2: fluid is flowed by conduit 4, is flowed through into pearl 2, is finally flowed into adapter body 1.
As shown in figure 13, force analysis is carried out to its inside.Fluid flow direction is V2, when it is flowed in conduit 4 by narrow section
To when entering in pearl 2 at first guide face 221 and the second guide face 222, since 5 section of runner becomes larger suddenly, fluid can be suitable
Its flow direction one impulse force F2 is generated to 222 surface of the second guide face, which decompose, to the known to us
The component of impulse force F1 can be considered an additional sealed pressure for one sealing surface 6, can allow the sealing effect of primary sealing area 6
More preferably.
Embodiment two:
Embodiment two compares embodiment one, and difference is only that the structure into pearl 2, as shown in Figure 2.Specifically: in embodiment two only
Be provided with the first guide face 221 and not set second guide face 222, at the same set inclined-plane for the first guide face 221 rather than
Cambered surface.Set-up mode as embodiment two, can only flow to tube fluid is to flow to finally to flow into pearl 2 from adapter body 1
When the direction of conduit 4, better seal effect is played to secondary sealing area 7, can not just be utilized when fluid flow direction is opposite
Its own kinetic energy plays better seal effect.
Embodiment three:
Embodiment three compares embodiment one, and difference is only that the structure into pearl 2, as shown in Figure 3.Specifically: in embodiment three only
Be provided with the first refluence face 221 and not set second guide face 222, at the same set inclined-plane for the first guide face 221 rather than
First resistance surface 223 and the second resistance surface 225 are further disposed as cambered surface by cambered surface.The such setting of embodiment three
Mode, can only also flow to tube fluid be when flowing to the direction into the last inflow catheter 4 of pearl 2 from adapter body 1, close to second
Cover 7 plays better seal effect, can not just be played using its own kinetic energy when fluid flow direction is opposite preferably close
Seal effect.The first resistance surface 223 and the second resistance surface 225 of arc-shaped setting simultaneously, conduit 4 are being placed on conduit connecting pin 22
When, it is more easier to slip.
Example IV:
Example IV compares embodiment one, and difference is only that the structure into pearl 2, as shown in Figure 4.Specifically: it is set in example IV
The first guide face 221 and the second guide face 222 set are inclined-plane, and in embodiment one are cambered surface.The setting of cambered surface is opposite to be implemented
Setting in example four can allow fluid flowing more smooth.
Embodiment five:
Embodiment five compares embodiment one, and difference is only that the structure into pearl 2, as shown in Figure 5.Specifically: it is set in embodiment five
The first guide face 221 and the second guide face 222 set are inclined-plane, and the first resistance surface 223 and the second resistance surface 225 are cambered surface.
For embodiment one, the first guide face 221 of arc compares 221 He of the first guide face on inclined-plane with the second guide face 222
Second guide face 222 can allow fluid flowing more smooth, while the first resistance surface 223 and the second resistance surface 225 of arc, no
Conducive to 4 sets of conduit outside conduit connecting pin 22, it is easier to slip.
Embodiment six:
Embodiment six compares embodiment one, and difference is only that the structure into pearl 2, as shown in Figure 6.Specifically: in embodiment six simultaneously
Not set second guide face 222, it is to be flow to from adapter body 1 into pearl 2 most that such set-up mode, which can only flow to tube fluid,
Afterwards when the direction of inflow catheter 4, better seal effect is played to secondary sealing area 7, when fluid flow direction is opposite with regard to nothing
Method plays better seal effect using its own kinetic energy.
Embodiment seven:
Embodiment seven compares embodiment one, and difference is only that the structure into pearl 2, as shown in Figure 7.Specifically: in embodiment seven simultaneously
Not set second guide face 222, while cambered surface, such setting side are set by the first resistance surface 223 and the second resistance surface 225
It is to seal when flowing to the direction into the last inflow catheter 4 of pearl 2 from adapter body 1 to second that formula, which can only also flow to tube fluid,
Better seal effect is played in face 7, just can not play better seal using its own kinetic energy when fluid flow direction is opposite
Effect.The first resistance surface 223 and the second resistance surface 225 of arc simultaneously, is unfavorable for 4 sets of conduit outside conduit connecting pin 22,
More easily slip.
Embodiment eight:
Embodiment eight compares embodiment one, and difference is only that the structure into pearl 2, as shown in Figure 9.Specifically: in embodiment eight
First resistance surface 223 and the second resistance surface 225 are set as cambered surface, and such setting is unfavorable for 4 sets of conduit in conduit connecting pin 22
It is external, it is easier to slip.
Presently preferred embodiments of the present invention has already been described in detail above, it should be appreciated that reading above-mentioned instruction of the invention
After content, those skilled in the art can make various modifications or changes to the present invention.Such equivalent forms equally fall within this Shen
It please the appended claims limited range.
Claims (10)
1. a kind of pipe joint, comprising: adapter body enters pearl and nut；The adapter body have main body canister portion, outer cylindrical portion and
Inner cylinder portion, the outer cylindrical portion are coaxially provided projectingly from main body canister portion to its axis direction side, the outer cylindrical portion and inner cylinder portion
The groove portion of oriented one side opening of axis direction is surrounded and is formed, the inner cylinder portion is set to the radially inner side of outer cylindrical portion and so as to dashes forward
Outlet than outer cylindrical portion jag closer to main body canister portion side mode and outer cylindrical portion to the same direction from main body canister portion coaxially
It is provided projectingly；It is described enter pearl include being embedded in the tubular built-in end of adapter body and the conduit connecting pin far from built-in end, it is described
Built-in end is removably embedded on the inside of groove portion to form sealing；The conduit connecting pin is in far from radially protruding on axis direction
Setting；The nut is threadedly coupled with adapter body；The adapter body and the inside for entering pearl are provided with circulates to fluid
Runner；The pipe joint is it is characterized by: the conduit connecting pin inner flow passage inner circumferential is provided with the first guide face, institute
The opening radial dimension for stating the first guide face towards conduit connecting pin is gradually reduced.
2. pipe joint according to claim 1, it is characterised in that: the outer surface of the conduit connecting pin is supported including first
Contacting surface and the second resistance surface, first resistance surface close to conduit connecting pin opening be arranged, second resistance surface close to enter
Pearl is embedded in extreme direction setting, and first resistance surface, the setting of the second resistance surface are a plane or an arc surface；The first guide face setting
It is corresponded at the first resistance surface in entering in pearl runner.
3. pipe joint according to claim 2, it is characterised in that: first guide face end is connected with the second water conservancy diversion
Face, first guide face and the second guide face form annular groove.
4. pipe joint according to claim 2 or 3, it is characterised in that: first guide face is set as plane or arc
Face.
5. pipe joint according to claim 3, it is characterised in that: the second guide face setting is a plane or an arc surface.
6. pipe joint according to claim 1 or 2, it is characterised in that: the first guide face edge enters pearl axial width
It is set as between 3mm-15mm；The first guide face edge enters pearl radial height and is set as between 0.1mm-4mm.
7. pipe joint according to claim 3, it is characterised in that: first guide face and the second guide face edge enter pearl
Axial overall width is set as between 3mm-15mm；The second guide face edge enters pearl radial height and the first guide face edge enters pearl
Radial height is identical.
8. pipe joint according to claim 1 or 2, it is characterised in that: first guide face edge is set as fillet.
9. pipe joint according to claim 3, it is characterised in that: the edge of first guide face and the second guide face
It is disposed as fillet.
10. pipe joint according to claim 2, it is characterised in that: between first resistance surface and the second resistance surface
It is connected with horizontal connecting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412756.XA CN110030442A (en) | 2019-05-17 | 2019-05-17 | A kind of pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412756.XA CN110030442A (en) | 2019-05-17 | 2019-05-17 | A kind of pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110030442A true CN110030442A (en) | 2019-07-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910412756.XA Pending CN110030442A (en) | 2019-05-17 | 2019-05-17 | A kind of pipe joint |
Country Status (1)
| Country | Link |
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| CN (1) | CN110030442A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020233337A1 (en) * | 2019-05-17 | 2020-11-26 | 杭州科百特过滤器材有限公司 | Sealed conduit connector |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR515991A (en) * | 1919-02-05 | 1921-04-12 | W H Dorman And Company | Improvements to fittings and similar accessories for high pressure fluid lines |
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